Re: [Xen-devel] Q on shared_mem and event_channel

[ravi kerur <rkerur@xxxxxxxxx>]

Thanks Konrad, couple of q's

1. will this work with xenserver 5.6.0(citrix)? reason being, it uses /dev/xen/gntalloc and /dev/xen/gtndev  and I don't see these devices in xenserver 5.6.0 dom0 and I don't see similar devices in xenserver 5.6.0

2. I might be able to use this functionality in conjunction with socket calls, do you see any reason not to do it? Basically in my case I want to have shared_mem/evt_chn setup either during bootup of dom0/domU's or when my application is started.

Thanks
-Ravi

On Tue, Feb 8, 2011 at 1:57 PM, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx> wrote:

On Tue, Feb 08, 2011 at 01:34:48PM -0800, ravi kerur wrote:
> Hello,
>
> I think this might have been discussed numerous times on this mailing-list,
> if there is a relevant post I can refer to please point that to me. What I
> am trying to do is set up a shared memory/event-channels between dom0 and
> domU's via socket calls because I cannot use existing front-end/back-end
> driver mechanism since it relies on devices aka vif, vbd type of device to
> be created and uses xenbus/xenstored for communication between domains.
> Adding support for new device similar to vif/vbd may require xapi changes as
> well which I would like to avoid. Instead write own socket library calls aka
> bind/connect and use them to setup shared memory and event channels between
> domains. I haven't sketched out details yet, but thought of checking if this
> would be feasible.

Like this:
http://www.gossamer-threads.com/lists/xen/devel/197987
?

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